This is a 3/8" AF 12‑point socket with a 1/2" square drive, supplied in bulk for workshop or professional use. It is designed to engage 12‑point (double‑hex) fasteners of nominal 3/8" across flats, giving a closer fit on imperial fasteners and allowing the socket to engage the nut or bolt at multiple angles when space is restricted. The primary use is for removal and tightening of 12‑point fasteners where a 1/2" drive ratchet, breaker bar or extension is employed.

The socket is manufactured from chrome‑vanadium (Cr‑V) steel and is heat treated for improved strength and durability. It is machine finished and chrome plated to provide a corrosion resistant surface and to ease cleaning after use. The internal profile is a 12‑point (twelve‑point) head type and the drive recess accepts a 1/2" (12.7 mm) square drive tool. There are no external threads on the socket; it is compatible with standard 1/2" drive accessories such as universal joints, extensions and torque arms. The dimensioning and workmanship conform to recognised DIN/ISO/BS dimensional standards for hand sockets, ensuring interchangeability with other manufacturers' 1/2" drive tools.

Typical applications include automotive and light commercial vehicle maintenance, plant and machinery servicing, assembly workshops and general engineering where imperial fasteners are present. The 12‑point form is particularly useful on fine‑pitch or damaged heads and in confined spaces where the increased number of engagement positions reduces the need to reposition the ratchet.

Key benefits are the corrosion resistance provided by the chrome finish, the strength and wear resistance of chrome‑vanadium construction, and broad compatibility with all standard 1/2" drive tools and accessories. The 12‑point profile offers faster alignment on fasteners and reduces rounding of damaged heads compared with some shallow profiles.

Duchy Fasteners stocks this Draper Tools 3/8" AF 12‑point 1/2" drive socket in single pieces and bulk packs; a full range of metric and imperial sizes and complementary 1/2" drive accessories are available to suit workshop and trade requirements. Part code DR11548 for reordering.